Home / 30,151.41-45,229.28-7,964.57

Finding the Fourth Proportional to 30,151.41, 45,229.28 and 7,964.57

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Solution

The fourth proportional to 30,151.41, 45,229.28 and 7,964.57 is: 11,947.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,151.41 : 45,229.28 = 7,964.57 : x
  2. Step 2: Convert to fraction form
    30,151.41/45,229.28 = 7,964.57/x
  3. Step 3: Cross multiply
    30,151.41x = 45,229.28 × 7,964.57
  4. Step 4: Simplify right side
    30,151.41x = 360,231,766.61
  5. Step 5: Solve for x
    x = 360,231,766.61/30,151.41
  6. Step 6: Final answer
    x = 11,947.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.